After transitioning last fall to a new CEO, Kirt Walker, the insurance giant ended the year with revenues up just slightly, leading it to fall one spot in the rankings. Though there were fewer major natural disasters in 2019—which can mean costly claims for the insurer—there were numerous smaller-scale events, about 60 by the company’s count, that required it to dole out $17 billion in insurance claims and benefits. Still, Nationwide's profits surged nearly 62% last year, with a leg up from increased investment income. The company, meanwhile, continues to experiment with new technologies and to roll out innovations like SmartMiles, a pay-as-you-go auto insurance product.